Hi,
How would I get rid of lines having something else than numbers (such as tabs,white space, special characters, empty line, letters).
So I have big file with numers as follows:
12345678901
23456789012
32343678901
42345638901
52345678901
and I sometimes the file might contain some... (2 Replies)
just have a file
1:2333 2:-09393 ]3:45453 4:-09999 5:-09933 6:93939
question is to get output by removing colons as well as number before each colon (in bold)
2333 -09393 45453 -09999 09933 93939 (5 Replies)
Hi all,
Can I edit this script:
find . -type f | while read i;do && mv "$i" "${i//abc/}" ;done
so that it will not only take out abc from the filename but also take out any numbers that might be in the filename as well.
An example would be,
Input:
filename abc 2009.mov
Output:... (7 Replies)
How can I remove the numeric (1,2,3,4,5,etc.) in front of each line? The file look like this..
1CREATE OR REPLACE pROD (p_sc_id number,
2 p_snap_id number , p_sid number, p_halt varchar2 default 'N', p_a_nm varchar2 )
3 as
4 v_rtn number;
5
6 v_rtn... (3 Replies)
What am I doing wrong here? Or is this not possible?
A bug?
alias f='find . >found 2>/dev/null &'
f ; sleep 20 ; ls -l
-bash: syntax error near unexpected token `;' (2 Replies)
Hi guys,
This is my input
2735:<7001> 34 789 701 2
2774:<7001> 34 789 701 2
How to delete characters after colon :
Including colon : too ?
My output should... (3 Replies)
I have a file that has some text that looks like this
Some Text
1. More text
2. Different text
Final Text
I would like the remove the lines of text that start with the numbers.
Some Text
Final Text
I have tried to use cat file.txt | grep -Ev 1. >... (9 Replies)
Although i tried multiple option i couldn't find a way to get the rigt ouput.
Say i have the following data
cat file.txt
C request
C response
C request
C response
The output should look like (9 Replies)
The bash below executes and does find all the .bam files in each R_2019 folder. However set -x shows that the .bam extension only gets removed from one .bam file in each folder (appears to be the last in each). Why is it not removing the extension from each (this is $SAMPLE)? Thank you :).
set... (4 Replies)
Discussion started by: cmccabe
4 Replies
LEARN ABOUT CENTOS
escape
escape(1) Mail Avenger 0.8.3 escape(1)NAME
escape - escape shell special characters in a string
SYNOPSIS
escape string
DESCRIPTION
escape prepends a "" character to all shell special characters in string, making it safe to compose a shell command with the result.
EXAMPLES
The following is a contrived example showing how one can unintentionally end up executing the contents of a string:
$ var='; echo gotcha!'
$ eval echo hi $var
hi
gotcha!
$
Using escape, one can avoid executing the contents of $var:
$ eval echo hi `escape "$var"`
hi ; echo gotcha!
$
A less contrived example is passing arguments to Mail Avenger bodytest commands containing possibly unsafe environment variables. For
example, you might write a hypothetical reject_bcc script to reject mail not explicitly addressed to the recipient:
#!/bin/sh
formail -x to -x cc -x resent-to -x resent-cc
| fgrep "$1" > /dev/null
&& exit 0
echo "<$1>.. address does not accept blind carbon copies"
exit 100
To invoke this script, passing it the recipient address as an argument, you would need to put the following in your Mail Avenger rcpt
script:
bodytest reject_bcc `escape "$RECIPIENT"`
SEE ALSO avenger(1),
The Mail Avenger home page: <http://www.mailavenger.org/>.
BUGS
escape is designed for the Bourne shell, which is what Mail Avenger scripts use. escape might or might not work with other shells.
AUTHOR
David Mazieres
Mail Avenger 0.8.3 2012-04-05 escape(1)